Finding the Fourth Proportional to 110,716.21, 152,735.74 and 65,363.81
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Solution
The fourth proportional to 110,716.21, 152,735.74 and 65,363.81 is: 90,170.99
Step by Step Solution
- Step 1: Write the proportion equation
110,716.21 : 152,735.74 = 65,363.81 : x - Step 2: Convert to fraction form
110,716.21/152,735.74 = 65,363.81/x - Step 3: Cross multiply
110,716.21x = 152,735.74 × 65,363.81 - Step 4: Simplify right side
110,716.21x = 9,983,389,889.57 - Step 5: Solve for x
x = 9,983,389,889.57/110,716.21 - Step 6: Final answer
x = 90,170.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.